refactor: fix `return.unusedType` errors (#9514) #13101

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.2) / Sanity Tests	4m 30s
Others (8.1) / Sanity Tests	2m 35s
Others (8.4) / Sanity Tests	2m 23s
Others (8.3) / Sanity Tests	2m 43s
SeparateProcess (8.1) / tests	4m 2s
SeparateProcess (8.3) / tests	4m 2s
SeparateProcess (8.2) / tests	4m 3s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 2s
DatabaseLive (8.1, Postgre, 8.0) / tests	3m 26s
DatabaseLive (8.1, SQLite3, 8.0) / tests	3m 24s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 58s
SeparateProcess (8.4) / tests	3m 12s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 11s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 5s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 47s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 46s
DatabaseLive (8.4, SQLite3, 8.0) / tests	3m 41s
DatabaseLive (8.3, SQLite3, 8.0) / tests	3m 3s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 22s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 30s
DatabaseLive (8.3, OCI8, 8.0) / tests	5m 48s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 34s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 31s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 34s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 39s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 40s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 1s
DatabaseLive (8.1, MySQLi, 8.0) / tests	5m 58s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 18s
CacheLive (8.4) / Cache Live Tests	2m 10s
CacheLive (8.3) / Cache Live Tests	2m 3s
CacheLive (8.1) / Cache Live Tests	2m 9s
CacheLive (8.2) / Cache Live Tests	2m 33s
Upload coverage results to Coveralls / coveralls	54s
	2h 15m 39s

Provide feedback